Sign support structure



FIG. 1 is a front, perspective view of a sign support structure showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof, the left side view being a mirror image of the right side view;

FIG. 5 is a cross-sectional view taken along the line 5-5 in FIG. 2;

FIG. 6 is a top view thereof; and

FIG. 7 is a bottom view.

FIG. 8 is a front, perspective view of the sign support structure of FIG. 1 with additional environmental subject matter including a sign shown in broken lines;

FIG. 9 is a front view thereof;

FIG. 10 is a rear view thereof;

FIG. 11 is a right side view thereof, the left side view being a mirror image of the right side view;

FIG. 12 is a top view thereof; and

FIG. 13 is a bottom view.

FIG. 14 is a front, perspective view of the sign support structure of FIG. 1 in smaller scale and with additional environmental subject matter including a sign and a display fixture shown in broken lines.

FIG. 15 is a front, perspective view of a sign support structure showing our new design;

FIG. 16 is a front view thereof;

FIG. 17 is a rear view thereof;

FIG. 18 is a right side view thereof, the left side view being a mirror image of the right side view;

FIG. 19 is a top view thereof; and

FIG. 20 is a bottom view.

FIG. 21 is a front, perspective view of the sign support structure of FIG. 15 with additional environmental subject matter including a sign shown in broken lines;

FIG. 22 is a front view thereof;

FIG. 23 is a rear view thereof;

FIG. 24 is a right side view thereof, the left side view being a mirror image of the right side view;

FIG. 25 is a top view thereof; and

FIG. 26 is a bottom view; and,

FIG. 27 is a front, perspective view of the sign support structure of FIG. 15 in smaller scale and with additional environmental subject matter including a sign and a display fixture shown in broken lines.

The features shown in broken lines are portions of the sign support structure or environmental subject matter to the sign support structure forming no part of the claimed design. The features shown in long dash-short dash bolded broken lines indicate the bounds of the claimed design and otherwise form no part of the claimed design. 

CLAIM The ornamental design for a sign support structure, as shown and described. 